著者
中山 泰喜 青木 克巳 沖 真
出版者
社団法人 可視化情報学会
雑誌
可視化情報学会誌 (ISSN:09164731)
巻号頁・発行日
vol.25, no.Supplement2, pp.339-342, 2005-10-01 (Released:2009-07-31)
参考文献数
2

It is said that the Jomon Age began about12, 000 years ago and continued till about 2, 500 years ago. The potteries of that age are known as Jomon pottery. Among them, a pottery discovered from the Umataka ruin in Niigata Prefecture in 1931 has an excellent shape. It is said that this pottery was made about 4, 500 years ago. Jomon potteries of similar artistic styles have been discovered in various parts of Japan. These potteries have very nice shapes, but the pottery discovered from the Umataka ruin excels other potteries by its excellent proportion. From the shape of lip, it was named "Kaen pottery" meaning " flame pottery" . However, from the patterns of its lip and side wall, it is more appropriate to consider that they are related to water flow. In this report, this hypothesis by a visualization method using the pollen of cedar and pine trees, and computer simulation.
著者
中山 泰喜 青木 克巳 沖 真
出版者
社団法人 可視化情報学会
雑誌
可視化情報学会誌 (ISSN:09164731)
巻号頁・発行日
vol.26, no.Supplement1, pp.223-226, 2006-07-01 (Released:2009-12-08)

It is said that the Jomon Age began about 12, 000 years ago and continued till about 2, 500 years ago. The potteries of that age are known as Jomon pottery. Among them, a pottery discovered from the Umataka ruin in Niigata Prefecture in 1931 has an excellent shape. It is said that this pottery was made about 4, 500 years ago. Jomon potteries of similar artistic styles have been discovered in various parts of Japan. These potteries have very nice shapes, but the pottery discovered from the Umataka ruin excels other potteries by its excellent proportion. In this report, it was made clear that the vortex patterns of side wall consist of twin vortex and Karman vortex applying visualization methods using the pollen of cedar and pine trees, and computer simulation.
著者
中山 泰喜 菊池 徹夫 沖 真 青木 克巳 丸岡 計
出版者
社団法人 可視化情報学会
雑誌
可視化情報学会誌 (ISSN:09164731)
巻号頁・発行日
vol.24, no.Supplement1, pp.165-168, 2004-07-01 (Released:2009-07-31)
参考文献数
1

It is said that Jomon Age began about 12, 000 years ago and continued till about 2, 500 years ago. The potteries of that age are known as Jomon pottery. Among them, a pottery discovered from the Umataka ruin in Niigata Prefecture in 1931 has an excellent shape. It is said that this pottery was made about 4, 500 years ago. Jomon potteries of similar artistic styles have been discovered in various parts of Japan. These potteries have very nice shapes, but the pottery discovered from the Umataka ruin excels other potteries by its excellent proportion. From the shape of lip, it was named "Kaen pottery". However, from the patterns of its lip and side wall, it is more appropriate to consider that they are related to water flow. In this report this hypothesis is examined by a visualization method using the pollen of cedar and pine trees, and computer simulation.
著者
中山 泰喜
出版者
一般社団法人 ターボ機械協会
雑誌
ターボ機械 (ISSN:03858839)
巻号頁・発行日
vol.2, no.5, pp.429-436, 1974-11-14 (Released:2011-03-18)
参考文献数
36
著者
中山 泰喜 青木 克巳 沖 真
出版者
社団法人 可視化情報学会
雑誌
可視化情報学会誌 (ISSN:09164731)
巻号頁・発行日
vol.22, no.1Supplement, pp.161-164, 2002-07-01 (Released:2009-09-03)
参考文献数
2

It is said that the Jyoumon Age Culture continued from 16, 000 years ago to 2, 500 years ago and the people who bore the culture is called Joumon-jin. Earthen ware that were produced by Jyoumon-jin are called Joumon-doki. Jyoumon-doki have been discovered in various parts of Japan and there are many kinds of them. Among them, one discovered at Umataka-ruins in Niigata Prefecture at the end of 1931 is very famous for its nice patterns and it was named Kaen-doki.The patterns on its lip and side wall are related to the water flow, the authors believe. The nice vortex patters of Kaen-doki put on their side wall are two kinds of vortex observed down stream of piles and rocks in the river acting the pollen and fallen leaves, etc. as tracers.This fact was appeared again using Floating Tracer Method, one of the visualization methods of modern age, and the computer simulation.
著者
青木 克巳 斉藤 昌邦 中山 泰喜
出版者
一般社団法人日本機械学会
雑誌
日本機械学会論文集 B編 (ISSN:03875016)
巻号頁・発行日
vol.51, no.469, pp.p2889-2896, 1985-09

本論文は旋回流を伴った円筒管内再循環流領域の生成に関して述べたものである.本研究では,レイノズル数1500までに対して,ノズルからの一次流れと旋回器からの二次流れの比,ならびに旋回角の変化に対する数値計算と実験が行われている.そして実験値と計算結果は良く位置している.これらの結果から,流量比,旋回角,レイノルズ数の変化に対する流れ様式を再循環流領域の大きさ,形状などを明らかにした.